Lubricator



(No Model.) -2 Sheets-Sheet 1. E. C. PARKER.

` VLUBRIGATQR. N0. 533,370. Patented Jan. 29, 1895. 1 /5J .2557er Brief.

PATENT EETEE.

EDGAR C. PARKER, OF ST. LOUIS, MISSOURI.

LUBRICATOR.

SPECIFICATION forming part of Letters Patent No. 533,370, dated January29, 1895.

Application filed March 24, 1894.

' the @ity of si. Louis, in the state of Missouri,

have invented a certain new and useful Improvement in AutomaticFeed-Lubricators, of which the following is a full, clear, and exactdescription, reference being'had to the accompanying drawings, formingpart of this `specilication.

This invention has for its object to provide a feed lubricator, moreespecially adapted to the use of graphite, which shall be perfectlyautomatic in its action, and also perfectly constant, feeding a definiteamount of the lubricating material when the engine is being operated,and ceasing entirely to feed when the engine is stopped. This feedlubricator can be used with oil or graphite, and in either case isentirely positive in its action, depending entirely on mechanical meansinstead of on the consistency of the lubricator itself, to regulate thequantity fed into the engine.

My invention consists in features of novelty hereinafter fully describedand pointed out in the claims.

Referring to the drawings, Figure I is a front view, showing a part ofthe steam cylinder in section. Fig. II is a side View, showing the upperpart of the reservoir in section. Fig. III is a top view of thelubricator, showing the cover of the reservoir removed. Fig. IV is -across section through the feed cylinder, taken on line-IV-IV, Fig. V.Fig. V is a longitudinal section through the feed cylinder, taken online V-V, of Fig. IV. Fig. VI is a detail view of the pawl and itsconnection to the piston rod. Fig. VII is a front View of thelubricator, showing the method of attaching to an engine.

Referring to the drawings, 1 is the reservoir, which contains thelubricator. This reservoir is provided with a suitable cover 2, and thelower end terminates in a funnel shaped part 3, which leads into a feedpipe 4, which connects with the steam inlet pipe or cylinder of theengine, as the case may be. Through this feed pipe 4, and intersectingit, is a horizontal, cylindrically shaped valve chamber 5, which isclosed at one end. Into this valve chamber there is accurately fitted acylindrical plug 6, which is intended to revolve around vin the valvechamber 5. The plug 6 is pro- Serial No. 505,031. (No model.)

vided with a stem 7, which extends out of the valve chamber 5, through astuffing box 8, which closes the other end of the cylinder 5. In thesurface of the plug 6 there is excavated a pocket 9, so located thatwhen the plug 6 is revolved, the pocket 9 will alternately face theopening of the pipe 4 leading from the reservoir 1, and the opening ofthe pipe 4, leading to the engine.

The operation of this lubricator consists simply in revolving this plug6 so that when the pocket 9 faces the opening from the reservoir 1, itwill be lled with .the lubricating material. Upon being revolved arounduntil the pocket 9 faces the other opening in the pipe 4, thislubricating material will be discharged, and flow into the engine. Themechanical device for revolving the plug 6 consists essentiallyin aratchet wheel l0, placed upon the stem 7 of the plug 6, and a smallsteam cylinder for operating a pawl, which engages the ratchet wheel 10.The ratchet wheel 10 being mounted securely on the stem 7, has looselymounted on its hub a lever 11,

vwhich extends out beyond the perimeter of the ratchet wheel 10. Thislever 11 carries a small pawl 12, which engages the teeth of the ratchetand is held in contact with them by the spring 13. y

Secured to the reservoir lisa vertical steam cylinder 14, provided witha piston and piston rod 15',` which extends out through astuifing box 16at the lower end of the steam cylinder 14. A guide 17 secured to thefeed pipe 4 provides another bearing point for the piston rod 15. athread turned on its lower extremity, and a nut 18 placed above theguide 17 can be so regulated as to determine the extent of the downwardthrust of the piston rod 15. A similar nut 19 placed below the guide 17,limits the upward thrust of the piston rod 15. A coil spring 2O isplaced around the piston rod 15, and bearing against the under side ofthe guide 17, and the upper side of the nut 19, holds the piston rod 15normally at its lowest position. The piston rod 15 is connected to thelever ll by a short pitman 2l, so that every stroke of the piston rod 15will oscillate the lever 11. With every oscillation of the lever 11, theratchet wheel 10 will be revolved a fraction of a revolution. Since thelength of This piston rod 15 is made with IOO the stroke of the pistonrod 15 can be adjusted by the nuts 18 and 19, thelength oftheoscillation of the lever 11 can be lengthened or shortened so as tocover a greater or less number of the teeth of the ratchet wheel 10; inthis way requiring a greater or less number of the strokes of the pistonrod 15 to accomplish an entire revolution of the plug 6. The stroke ofthe piston rod 15 depends for its movement upon the pressure of steamexerted under its lower surface, and this is acquired through the mediumor" a pipe 22 connecting the lower end of the steam cylinder 14 with oneend of the en gine cylinder, so that when the live steam enters theengine cylinder, the pressure is exerted at the same time at the lowerend of the small steam cylinder 14. This raises the piston rod 15. 'Whenthe same end of the engine cylinder is exhausting, the pressure in thelower end of the cylinder 14 is relieved, and the spring 2O draws thepiston rod 15 down to its lower position; in this way making the pistonrod operate simultaneously with the stroke of the engine to which thelubricator is attached.

Instead of the spring 2O operating to draw the piston rod 15 down to itslowest position, the upper end of the cylinder 14 may be connected tothe other end of the engine cylinder by a pipe similar to thatconnecting the lower end. This is indicated in Fig. VII of the drawings,by the dotted line 23, in this way making the stroke of the piston rod15 not dependent on any means other than the steam pressure in theengine cylinder.

An advantage of this lubricator over the majority of automatic feedlubricators consists in the fact that the instant the engine to which itis attached is stopped, the lubricator ceases to feed.

I claim as my invention- 1. The combination, in an automatic feedlubricator, of the reservoir 1, the valve-chamber 5 provided with therevolving plug 6 having one or more pockets 9, the ratchet-wheel 10 andpawl 12 for revolving the plug 6, and the steam cylinder 14, one end ofwhich is connectedto one end of thevengine cylinder by the pipe 22 andthe other end of the cylinder 14 being connected to the other end of theengine cylinder by the pipe 23, so that the piston in the cylinder 14will move in unison with the engine piston, and the piston rod 15connected to operate the pawl 12 on the Aratchetwheel 10; substantiallyas described.

2. The combination, in an automatic feed lubricator, of the reservoir 1,the revolving plug 6 having one or more pockets 9 in the valve-chamber5, the ratchet-wheel 10 and -pawl 12 for revolving the plug 6, and thesteam cylinder 14 connected to one end of the engine cylinder andprovided. with the piston-rod 15, and coil spring 2O for operating thepawl 12 on the ratchet-wheel 10; substantially as described.

EDGAR C. PARKER.

In presence of- HALooLM G. ELLIS, C. G. EDWARDS.

